If a student is way under a colleges stats and hears back extremely early, like three weeks after they applied, does that mean they were auto accepted or rejected? The school does not have rolling admissions.
It is possible. Some schools, in particular the large ones, have certain computer generated admissions screening. However, it seems possible to me in this case, that something was problematic with the application, so that it was not even considered for admissions. I would call admissions and find out what is going on here. Was an application fee included with the application?
Yes, some colleges have automatic admission or rejection based on stats.
Yes, some colleges without explicit rolling admissions will give notification much earlier than the promised date.
Whether or not the above are related at a college that does both depends on the college.